Evaluation of Lumbar Lordosis

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Abstract
Two lordotic angles were measured on roentgenograms of 973 adults in a prospective and retrospective review. The majority of the films were taken because of lumbar complaints. The mean lumbosacral (LS) angle (L2- Sacrum) was 45.05° ±.85°. The mean lumbolumbar (LL) angle (L2–L5) was 29.96° ±.74°. Only minor differences were found between a standardized (prospective) and a nonstandardized (retrospective) group. There was a statistically significant difference between men and women with both LS and LL angles, but no racial differences were observed. A “routine” supine lateral lumbar spine roentgenogram is a very accurate means of measuring lordotic angles. A lordotic angle of less than 23° defines hypolordosis and more than 68°, hyperlordosis.

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